The black haired girl started the argument for no good reason. "I can be the leader," he said, or something along those lines. What does she reply with? Well, I forgot, but she was being a bitch about it. And her reasoning for her harshness was "he's annoying," like, what? That is no reason to start an argument, even more so when you're personally attacking them. He was just trying to defend himself, and clearly chose the wrong words, and was definitely at fault as well, but the girl had even less reasons to argue, was instead attacking him as a person instead of actually arguing normally, and was overall just being a bitch. If this didn't make sense... it probably doesn't, I can't lie.